Means for removing coal and other foreign bodies from coal-bunker doors or other water-tight closures on ships.



er. MAZZOLIN I. MEANS FOR REMOVING GOAL AND OTHER FOREIGN BODIES PROM GOAL BUNK ER DOORS OR OTHER WATER TIGHT GLOSURES ON SHIPS.

APPLIOATION FILED MAY2, 1912.

1,084,701 Patented Jan. 20, 1914.

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UNITED STATES PATENT oEFIcE.

GIUSEPPE MAZZOLINI, OF HOME, ITALY.

' MEANS FOR REMOVING GOAL AND OTHER FOREIGN BODIES FROM COAL-BUNKER DOORS OR OTHER WATER- Specification of Letters Patent.

TIGHT cLosUEEs 01v SHIPS.

Patented Jan. 20,1914.

Application fi1ed May 2, 1912. Serial No. 694,643.

To all whom it may concern:

Be it known that I, GIUsEPPE MAZZOLINI, a subject of the King of Italy, residing at Rome, Italy, gentleman, (whose post-oflice address is 19 Via delle Quattro Fontane, Rome, Italy,) have invented certain new and useful Improvements in Means for Removing Coal and other Foreign Bodies from Coal-Bunker Doors or other ater-Tight Closures on Ships, of which the following is a specification.

My present invention is an improvement of my prior device protected by U. S. Patent No. 1,022,688, and has for its object to provide an improved means for removing coal and other foreign bodies from coal bunker doors or other water tight closures on ships, such as illustrated by way of eX- ample in the annexed drawings where- Figure 1 is a front view of my improved protective device applied for use with a watertight door, Fig. 2 is a sectional view on line A-B of Fig. 1, while Fig. 3 is a side view of another arrangement of curved levers.

According to my said invention, in order to efficiently protect from interfering foreign bodies, such as coal &c., those parts of bulkheads or other watertight doors where the watertight closure is effected, the known protective plates (such as in my said prior U. S. patent) are assisted in their rotary movement by levers placed laterally to the frame which on descending cause other levers placed in the bottom part of the frame to be raised, thus causing the said known protective plates to assist with their tilting the instantaneous closing movementof the door.

1- and 2- in the present example are levers mounted parallel to the uprights or side-posts, and provided at their top ends with inward projecting teeth -3, the door being provided with coiresponding teeth 5 capable of striking in the descent the teeth -3-. The said levers 1 and -2 are guided by yokes -6- and pivoted to arms 7 of levers 8- pivoted in turn at 9-. Arms 10 and 11 of levers 8- are curved in opposite direction from each other so as to be able to assist each other with their backs. Yokes 6 guiding the levers --1- and 2 are provided with longitudinal slots having inclined faces on which glide the inclined faces +12- and -13-,

Fig. 2, fixed on the said levers 1 and The plates -f' and chave swell ings f and --c, and so has plate d which in its center, at the lower part, has an inclined face Z- on which acts the lever arm 10.

One of arms 7 of lever -S may have an extension 14: provided with a slot -15 in which slides a stud fixed to an arm 16 of a lever rotatably mounted at 17. The other arm is pivotally connected to the end of the rod of a valve 18- controlling a water and air jet directed under high pressure through tubes -19 and 20- on the sill so as to forcibly carry off any residual foreign bodies or detritus capable of interfering with the true watertight closure of the door. Simultaneously a set of teeth provided at the bottom of the door strongly act on the residual coal pieces on the sill so crushing them that they may be readily swept off by the said air and water jet.

The operation of my above described improved protective device is as follows: When watertight doors are to be closed, the frame or door &c. -el, as shown, on being lowered (by hand or distant operation) strikes with its projection -5- the teeth -3 and continues to push, transmitting this movement to levers -1 and 2 so as to lower them. By this movement the levers 8 by rotating on their pivots -9- raise arms 10 and -11- which in turn raise the plate or sill -dand in the meantime pieces 21 -2l are introduced so as to strike plates c f at the points bent to an inclined plane z- 1" causing them to rotate inward and push the coal or foreign bodies to the interior, the plates being moved to position -mr, and the door having continued to descend finds itself on the tight seat where it is compressed.

The above described device is sufficient to protect the abutting or tight closing edges of watertight doors against interfering foreign bodies so as to allOW of their perfectly tight closure, the tight seat being perfectly cleared of foreign bodies. If, however, thorough cleaning is desired, the above mentio-ned mixed air and water jet will be put projections 5- which after having struck the teeth 3 slide against the top bents of plates -f -c at the points z r and also lever arm l0- which thus engages the inclined faces cZ-. Simultaneously with the descent of the door air and water jets may be started by the dc scent of levers l or 2. Thus all detritus and foreign bodies having been swept off, a perfect watertight closure is effected.

It is understood that the above described example is only given for illustrative purposes, the lever arms 10- and llbe ing, for instance, capable of any relative position to each other, and of acting independently from each other, and also of taking the position at both parts 1, and so are the two inclined faces cZ, the whole without departing from the scope of my said invention.

Having now fully described my said invention and the manner in which the same is to be performed, I declare that what I claim as my invention is:

1. In a device of the class described, in combination, a door frame, a protective sill plate operatively associated therewith, said plate being rotatably mounted, whereby it may be moved into and out of operative position, a door, and levers operatively associated with said plate for moving it into its inoperative position, said levers being actuated by the door as it moves to its closed position.

2. In a device of the class described, in combination, a door frame, a protective sill plate operatively associated therewith, said plate being rotatably mounted, whereby it may be moved into and out of operative position, a door, levers positioned adjacent the side posts of the frame and provided with ciated with said sill plate to move the sameinto inoperative position upon actuation '0 said projections by said door.

3. In a device of the class described, in combination, a door frame, a door, a protective plate for the sill of said frame, protective plates for the sides of said frame, all of said plates being rotatably supported, and means controlled by the closing movement of the door for moving said plates into their inoperative position, said side plates being provided with means engaging said sill plate to assist in the movement of the latter.

4. In a device of the class described, in combination, a door frame, a door, a pipe operatively associated with said door frame for directing fluid under pressure to sweep foreign matter from the sill of the frame,

and means actuated by the closing movement of said door for controlling the flow of liquid through said pipe.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GIUSEPPE MAZZOLINI.

W'itnesses:

DIULIo N ARDONI, N ICOLA SIsTo.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. V 

